Coincheck (NASDAQ: CNCK) updates trading volume and customer assets

Rhea-AI Filing Summary

Coincheck Group N.V. reports preliminary monthly operating metrics for Coincheck, Inc. over the past twelve months.

Exchange Trading Volume ranged from 129,229 million yen in May 2026 to 461,342 million yen in October 2025, while Marketplace Trading Volume ranged from 16,790 million yen in May 2026 to 39,165 million yen in July 2025.

Customer Assets moved within a band between 695,445 million yen in February 2026 and 1,239,868 million yen in July 2025. The Number of Verified Accounts increased from 2,351,223 at the end of June 2025 to 2,547,147 at the end of May 2026. The company explains that exchange volume reflects peer‑to‑peer trades with generally no fee, whereas marketplace volume relates to its primary revenue-generating platform.

Key Figures

Exchange Trading Volume peak: 461,342 million yen Exchange Trading Volume recent low: 129,229 million yen Marketplace Trading Volume peak: 39,165 million yen +4 more

7 metrics

Exchange Trading Volume peak 461,342 million yen October 2025 monthly exchange trading volume

Exchange Trading Volume recent low 129,229 million yen May 2026 monthly exchange trading volume

Marketplace Trading Volume peak 39,165 million yen July 2025 monthly marketplace trading volume

Customer Assets high 1,239,868 million yen Customer Assets as of July 2025 month-end

Customer Assets low 695,445 million yen Customer Assets as of February 2026 month-end

Verified Accounts start 2,351,223 accounts Verified Accounts as of June 2025 month-end

Verified Accounts latest 2,547,147 accounts Verified Accounts as of May 2026 month-end

Key Terms

Exchange Trading Volume, Marketplace Trading Volume, Customer Assets, Verified Accounts, +2 more

6 terms

Exchange Trading Volume financial

"Exchange Trading Volume for a specific period is the total value..."

Marketplace Trading Volume financial

"Marketplace Trading Volume for a specific period is the total value..."

Total number or value of shares, contracts or other units bought and sold on a particular trading venue during a set period, usually a day. It shows how much activity and interest a marketplace or a specific security is drawing — like measuring foot traffic through a store — and helps investors judge how easy it will be to trade, how reliable price moves are, and whether a stock may swing wildly on small orders.

Customer Assets financial

"Customer Assets and Number of Verified Accounts correspond to figures..."

Verified Accounts financial

"Verified Accounts are all accounts that have been opened after..."

know your customer regulatory

"including “know your customer” or “KYC”), after subtracting..."

Know your customer (often called KYC) is the routine process financial firms use to verify who their clients are and assess the risk they pose, by collecting identity documents, background information and transaction history. For investors, KYC matters because it determines whether you can open or maintain accounts, how quickly you can trade, and how a firm manages regulatory and fraud risk—similar to a landlord checking references before renting to someone.

non-fungible tokens technical

"Customer Assets do not include non-fungible tokens (NFTs)."

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Form 6-K: How Foreign Companies Report to the SEC →

NO 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2026

Commission File Number: 001-42438

COINCHECK GROUP N.V.

(Translation of registrant’s name into English)

Nieuwezijds Voorburgwal 162

1012 SJ Amsterdam

The Netherlands

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: 

Form 20-F ☒     Form 40-F ☐

Coincheck Group N.V. (“Coincheck Group”) is providing the below update for Coincheck, Inc. (“Coincheck”). This information will also be posted at https://coincheck.com. Coincheck Group (“CNCK” and “CNCKW”) is a public limited liability company and the holding company for Coincheck. Coincheck operates one of the largest multi-cryptocurrency marketplaces and crypto asset exchanges in Japan and is regulated by the Japan Financial Services Agency. Coincheck provides Marketplace and Exchange platforms on which diverse cryptocurrencies, including Bitcoin and Ethereum, are held and exchanged as well as other retail-focused crypto services.

Coincheck Group uses its website (https://www.coincheckgroup.com/) to distribute company information and makes available free of charge a variety of information for investors, including its filings with the Securities and Exchange Commission (“SEC”), as soon as reasonably practicable after electronically filing that material with, or furnishing it to, the SEC. The information that Coincheck Group posts on its website may be deemed material. Accordingly, investors should monitor Coincheck Group’s website, in addition to following its press releases, filings with the SEC, and public conference calls and webcasts. In addition, investors may opt in to automatically receive email alerts and other information about Coincheck Group when enrolling their email address by visiting the “Email Alerts” section of the Coincheck Group website. Coincheck Group does not incorporate the information contained on, or accessible through, Coincheck Group’s website, Coincheck’s website or related social media channels into this Report on Form 6-K.

Monthly Disclosure

Coincheck, Inc. is reporting the following preliminary monthly disclosure information for the past twelve months. The preliminary numbers in the tables below are based on currently available information. These preliminary estimates have not been audited by any independent registered public accountants, are subject to update and should not be extrapolated for future periods. 

			Jun. 2025						Jul. 2025						Aug. 2025						Sep. 2025						Oct. 2025						Nov. 2025
Exchange Trading Volume (Million yen)			312,516						388,372						318,561						243,278						461,342						415,621
Marketplace Trading Volume (Million yen)			18,525						39,165						29,146						26,358						35,996						29,023
Customer Assets (Million yen)			1,000,300						1,239,868						1,159,863						1,189,219						1,177,426						1,005,469
Number of Verified Accounts			2,351,223						2,378,672						2,400,859						2,421,080						2,442,923						2,460,621

			Dec. 2025						Jan. 2026						Feb. 2026						Mar. 2026						Apr. 2026						May. 2026
Exchange Trading Volume (Million yen)			332,623						298,398						295,094						324,961						171,122						129,229
Marketplace Trading Volume (Million yen)			22,651						25,768						24,143						18,814						21,603						16,790
Customer Assets (Million yen)			948,533						854,339						695,445						728,051						796,470						773,103
Number of Verified Accounts			2,475,345						2,498,597						2,513,639						2,527,772						2,538,851						2,547,147

Notes 

●Exchange Trading Volume for a specific period is the total value, based on the underlying asset, of all transactions completed through Coincheck’s exchange platform. Coincheck’s exchange platform facilitates buy and sell transactions directly between two parties (a buyer and a seller) for which, generally, Coincheck charges no fee. Coincheck sometimes is a buyer on the exchange platform to help support transaction activity on the marketplace platform.

●Marketplace Trading Volume for a specific period is the total value, based on the underlying asset, of all transactions completed through Coincheck’s marketplace platform business. Historically, Coincheck’s total revenue has been derived primarily from transactions on Coincheck’s marketplace platform business. For additional details, please see Coincheck Group N.V.’s filings with the U.S. Securities and Exchange Commission.

●Customer Assets and Number of Verified Accounts correspond to figures as of the end of each month. Verified Accounts are all accounts that have been opened after the account owner completes all application procedures (including “know your customer” or “KYC”), after subtracting therefrom the total number of closed accounts.

●Customer Assets are cryptocurrencies held for customers + fiat currency deposited by customers. Customer Assets do not include non-fungible tokens (NFTs).

●Prior monthly numbers, which are generally preliminary at the time of initial publication, may have been updated by immaterial amounts.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			COINCHECK GROUP N.V.
Date: June 02, 2026			By:			/s/ Jason Sandberg
						Name:			Jason Sandberg
						Title:			Chief Financial Officer

FAQ

What monthly data did Coincheck Group (CNCK) disclose in this 6-K?

Coincheck Group disclosed 12 months of preliminary metrics for Coincheck, Inc., including Exchange Trading Volume, Marketplace Trading Volume, Customer Assets in million yen, and the Number of Verified Accounts as of each month-end, giving a detailed view of recent operating activity.

How did Coincheck (CNCK) describe Exchange Trading Volume in the filing?

Exchange Trading Volume is the total value of all transactions completed through Coincheck’s exchange platform, based on the underlying asset. This platform facilitates peer-to-peer trades between buyers and sellers, for which Coincheck generally charges no fee, though it may occasionally act as a buyer itself.

What is Marketplace Trading Volume for Coincheck Group (CNCK)?

Marketplace Trading Volume is the total value of all transactions on Coincheck’s marketplace platform, based on the underlying asset. The company notes that its total revenue has historically been derived primarily from marketplace transactions, highlighting the importance of this metric for understanding its business model.

What did Coincheck Group (CNCK) report about Customer Assets?

Customer Assets are defined as cryptocurrencies held for customers plus fiat currency deposited by customers, excluding non-fungible tokens. Reported Customer Assets ranged from 695,445 million yen in February 2026 to 1,239,868 million yen in July 2025, measured at each month-end during the disclosed period.

How are Verified Accounts defined for Coincheck (CNCK)?

Verified Accounts are accounts opened after all application procedures, including know your customer (KYC) checks, are completed, minus any closed accounts. The number increased from 2,351,223 at June 2025 month-end to 2,547,147 at May 2026 month-end, reflecting growth in active verified users.

Are Coincheck Group (CNCK) monthly metrics in this 6-K audited?

The company states these monthly figures are preliminary estimates based on currently available information and have not been audited by independent registered public accountants. Prior monthly numbers may be updated by immaterial amounts, so the data should not be extrapolated mechanically for future periods.